BIBLIO — Shared last names

Write a query that returns the first and last name (in this column order) of people who share their last name with someone else that has also checked out a book.

Table schema
CREATE TABLE BOOKS (Book_ID INT, Book_Name TEXT, Author TEXT);
CREATE TABLE CHECKED_OUT (First_Name TEXT, Last_Name TEXT, Book_ID INT);
Hint (click to show)
Group distinct people by last name and keep those with more than one.